Sandbags are adjustable-weight training aids with a soft structure and an unstable load: they are ideal for lifting, carrying and throwing exercises that replicate the dynamics of real-world loads in functional fitness training.
Cylindrical design with good rigidity for clean, snatch and carry
Soft surface: safe on floors, for people and for yourself
Versatile: from one-to-one sessions in your home gym to group circuit training
Flowbag & Sandbag
60,10€ 86,28€Fascia di prezzo: da 60,10€ a 86,28€
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Sandbag: the Sidea selection
Sandbags are bags filled with sand or granular material designed for training with an unstable load. Unlike fixed weights, the contents shift during movement, increasing the demand for muscular stabilisation and coordination. The Sidea range comprises two distinct types: the Si-Sand Bag in the classic format, with a rigid cylindrical structure in the outer shell, and the Flow Bag, designed for smoother movement and for activities such as alpine skiing and group sports. Both retain the key feature of this type of equipment: no hard edges, no risk of direct impact with surfaces or people.
Who is the sand bag for?
It has a wide range of applications. Strength and conditioning coaches use it in functional strength and metabolic conditioning programmes: a 20–30 kg sandbag used for clean and carry exercises works the posterior chain, grip strength and lumbopelvic stability in a way that is difficult to replicate with a barbell. In the functional training contexts Professional — including CrossFit boxes — it is used in WODs as an alternative to kettlebells or barbells, often with the advantage of being able to be used in areas not designated for Olympic weights. Personal trainers value it for its versatility: you can train on the floor, standing up or whilst moving, and clients can perform complex exercises without the technical learning curve required for barbell lifts. For the segment home gym, the sandbag is one of the most space-efficient pieces of kit available: it takes up little space, does not damage domestic flooring and provides a wide range of training stimuli. The Flow Bag is specifically designed for physical preparation for alpine skiing — thanks to the Training Kit FAST — and in the sessions of group activity, where tool safety is a non-negotiable requirement.
How to choose
The first criterion is the shape. The Si-Sand Bag has a cylindrical structure with sufficient rigidity to retain its shape whilst performing ballistic movements such as the clean or the snatch: this is not a detail to be overlooked, as a bag that collapses in on itself compromises the mechanics of the movement. The Flow Bag, on the other hand, is designed for more dynamic and fluid movements, with greater freedom of movement within the internal load: it is suitable for swinging, rotational and lateral carrying exercises.
Weight is the second factor. Sandbags lend themselves to traditional load progressions, but it is important to bear in mind that the same weight feels subjectively more challenging than a dumbbell or kettlebell of the same weight, precisely because of the instability of the contents. An athlete who trains with a 20 kg kettlebell might start with a 15–16 kg sandbag and find it provides an equivalent or greater challenge. Those using sandbags in metabolic circuits will opt for lower weights than those incorporating them into maximum strength sessions.
Third factor: the setting. For shared spaces, commercial gyms and group classes, the softness of the bag is a safety requirement. In home gyms, ease of storage is also important: cylindrical bags can be stacked or stood upright without any problems.
Sidea products for sandbags
Si-Sand Bag (SKU: SISANDBAG) — available in a range of weights (8045–8050), with a cylindrical design that retains its shape even during clean and snatch lifts. The outer covering is soft and abrasion-resistant. Available in the Sidea catalogue under the categories Flowbag & Sandbag, Functional Training and HomeGym.
Flow Bag (SKU: 8054) — designed for fluid, rotational movements, it is included in the Ski – FAST Training Kit, a fitness training programme specifically designed for alpine skiing. It is also used in group activity sessions thanks to the load’s stable behaviour and its ease of use, even for athletes who are not specialised in weightlifting.
Why choose Sidea
Sidea selects and distributes equipment with a focus on real-world performance: no frills, no marketing for its own sake. With over 25 years’ experience in the professional fitness equipment sector, an operational warehouse covering over 4,000 m² and a dedicated technical advisory team, Sidea is a go-to supplier for strength and conditioning coaches, gym managers and enthusiasts looking for equipment that stands the test of time. The sandbag fits perfectly into this philosophy: an essential, no-frills piece of equipment that meets the real needs of training with free and unstable loads.
Domande frequenti - Sand bag
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The sand bag has a stiffer cylindrical structure that retains its shape during ballistic movements such as the clean and snatch. The Flowbag is designed for smoother movements, with the internal load moving more freely: it is suitable for swinging, rotational and carrying exercises. Both share the feature of having a soft, safe surface.
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The main exercises are the clean, snatch, shoulder carry, bear hug carry, overhead press, floor-to-shoulder, rotational throw and drag. The sandbag also lends itself to variations of squats and lunges with the load positioned at the front or on the shoulder. Its instability increases the demand on core stabilisation compared to fixed weights.
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In professional settings, weights ranging from 10 to 40 kg are used, depending on the protocol. For functional strength exercises with trained athletes, weights typically range between 20 and 30 kg. For high-intensity circuit training or group exercise sessions, weights ranging from 10 to 20 kg are more common. The same weight in a sandbag is usually more challenging than the equivalent weight in dumbbells or kettlebells.
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Yes, it is one of the pieces of kit offering the best balance of space efficiency and versatility for home use. It has no sharp edges, does not damage floors or walls, is easy to store and covers a wide range of training stimuli: from strength training to cardiovascular conditioning. It does not require any support structures such as racks or beams.
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Yes. It is particularly useful in sports that require force to be applied to irregularly shaped objects, such as combat sports, rugby, wrestling and mountaineering. In Sidea’s FAST protocol, the Flow Bag is used specifically for the athletic training of alpine skiers, with exercises that replicate the kinetic chains involved in the technical movements performed on skis.
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The bag’s soft construction makes it safe for use in group activities: it has no hard surfaces or sharp edges that could cause injury from accidental contact. This sets it apart from kettlebells or dumbbells in group circuit training sessions. However, sufficient space must be allowed between participants, especially for exercises involving wide movements or controlled throws.
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Sidea offers a range of instalment payment options to make it easier to purchase professional equipment. Please see the dedicated page: Payment options Sidea.
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If you work in the fitness or sports sector, register on the website as a Professional or as an ASD to gain access to the price list reserved for industry professionals. Pro registration allows you to view exclusive discounts and special terms across the entire Sidea catalogue.
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Yes, Sidea is an authorised supplier on the MEPA (Public Administration Electronic Marketplace). Public bodies, schools, universities, local authorities and public sports facilities can purchase Sidea equipment via the platform Public Sector Online Procurement. For information on product codes and direct MEPA orders, please contact Sidea customer service.
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Sidea guarantees the right to cancel within 14 days of delivery for all online purchases, in accordance with current legislation. Products must be returned undamaged and in their original packaging. For full details on returns, refunds and the warranty, please see the page Terms and Conditions of Sale.
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Sidea has been designing and distributing professional fitness equipment since 1999: over 25 years’ experience serving gyms, sports coaches, CrossFit boxes, personal training studios and enthusiasts of advanced home fitness. Official distributor StrongFirst e Luxiaojun, which is exhibiting at the FIBO international trade fair and is the technical sponsor of the Summit of Strength. Every product is designed with durability, functionality and suitability for real-world operational contexts in mind. The service Gym Design Offers bespoke design services with 3D renderings. A warehouse covering over 4,000 m² in Gambettola (FC) to ensure rapid order fulfilment, direct technical advice and a special price list for professionals and amateur sports clubs.
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